Road roller and maintainer



March 17, 1925.

F. E. ARNDT ROAD ROLLER AND MAINTAINER Filed Aug. 12, 1924 2 Sheets-Sheet 1 March 17. 1925.

F. E. AR'NDT ROAD ROLLER AND MAINTAINER Filed Aug. 12, 1924 2 Sheets-Sheet 2 Patented Mar. 17, 19251 a citizen of the United States,

Maintainers,

; and

who

- UNI-TED STATES PATE FFIC-E.

FRANKLIN E. ABNDT, OF GALION, OHIO,

assrenon we run canon men weeks a use. 00., or canon, omo, A eonrom'rron or care.

Roan ROLLER m mamas I Application filed August 1:, 1024. Serial No. 781,848.

To all whom it may concern? Be'itknown that I, FRANKLIN E. ARNDT, residing at Galion, in the county of Crawford and State of Ohio, have invented'certain new and-useful Improvements in Road Rollers and of which the following is a specification.

,This invention relates to road machines, particularly to machines of that class in 1, a maintainer is used in connection with a roadroller-so that the road may be scraped or planed and the road thereby maintained while the road is being simultaneously rolled, v

One of the objects-of'the present invention is to provide a construction of this character wherein the maintainer is disposed in front. of a road roller so that the maintainer will be pushed ahead of the road roller to thereby plane or scrape the road and the wheels of the .road roller will follow the maintainer and roll down the road or any inequalities which. may be left.

A further object-is to provide 'a very 'sim" ple maintainer which is ada ted to be readapplied to a small road roller and in .w ich provision ismade for raisingor low- 'being located at the operators station.

ering the maintainer to. thereby vary the depth of. cut or lift the maintainer-entirely from the road, the means for this purpose A still further object is to rovide .a maintainer of this character in w ichthe scrap-' ing blade of the maintainer may be disposed atan angle to a horizontal plane so that one side of the maintainer is depressed while theother side is raised.

Another. object is to provide improved of the maintainer be disposed at an angle. tothe line of ater than a right angle. I

another object is to provide means means whereby the blade may draft 'whereby the sore ing'blade may-be adjusted either to a vertica osition, to a downwardly and forwardly inc 1 ned posltion, oradownand rearwardly inclined position,

wardl 1A fllrthr. object is to provide :improved means for v.su'pportin the maintainer blade and adgusting the b ade sot-hat either end of the I ade may be dis osed in advance of the other'end...of the bla e.

' A; stillfnrther object is to provide improved; means for raising. or lowering the mamtamer ()ther objects have to do with the details of construction and arrangement of parts as F1 re2;

igure 4 is'a sectional view of the worm shaft and its. bearin showing the worm wheel in elevation; v

Figure 5 1s a perspective view of the link connection whereby the-blade23 is tilted;

Figure 6 is a perspective view of the links for connecting the lade to the blade supporting and adjusting bars; Figure 7 is a pers ective view of the means whereby the central portion of the blade is supported formovement in horizontal and vertical planes; I In these drawings, I have illustrated the orward portion of a tractor and tractor .roller of .a common type, the frame of this tractor consisting of the longitudinally extending beams A which are extended u ward at'their -forward ends and 'conver 'e and which rotatably support the yoke g within \which isdisposed the front roller 0, it be ing understood that the rear ends of these. supported upon two rollers L beams A are which are of such width as to overla the track of the front roller 0.; I have lllllS- trated a tractor (of this description but do extending blade and a extending thrust bars ends are attached toa stri oted by abolt 12 to a U- aped bracket 13 riveted or otherwise attached to the channel frame bars A.- The thrust so that their rear ends converge and their forward ends extend laterall so as to pass beyond the en s C and then their forward ends and connected together by a any other suitable manner. bars arel fl outwar y ro'ectin each thrusil bdr is for of perforations 15.

gusset 14 .or in These thrust e at the middle of with a plurality bars are curvednot wish to be limited tothis form of tractor. The maintainer consists of a transversely pair of longitudinally 10, which at their rear 11, in turn piv-.

and forwardj of the'roller. are converged preferably of angle iron and-the-- 65 line 3--3 .of

- flange of the thrust bar Coacting with each of the thrust bars is a side adjusting arm formed of upper and lower metallic bars, designated 16 and 17, these bars being held in spaced relation to each other by spacin sleeves 18 and rivers 19. These'bars at t eir rear ends are in embrace the lower 10 and are held in place upon the thrust bar by means of a pin 20 passing through any one of the apertures 15. Attached to the upper face of the upper bar 16 is anangle iron 21, the vertical flange of which hasa series of perforations-22 disposed approximately an inch apart in actual practice. It will be seen that these side adjusting arms composed of the bars 16 and 17 are pivotally supported upon the thrust bars sothat these side adjusting arms may be shifted in a horizontal plane and that the thrust bars 10 are so'inounted that they may wardly bent so as to be turned upward or downward and furtherupper and lower supporting bars 32 and 33.

more that the side adjusting arms may be adjusted upon the thrust bars forward or rearward,

The maintainer blade 23 consists of two parts, a body and a blade proper 24 which may be reversed upon the body. Thedetailed construction of this scraper blade forms no part of my present invention. Riveted, bolted or otherwise attached to the maintainer blade adjacent the lower ends of the body is an angle iron 25 having a vertical flange disposed adjacent the blade and a horizontal flange. Tothe horizontal flange at the middle thereof are attached the angu-' lar brackets 26, and mounted on the depending ears of these brackets is a pintle 27 which passes through the barrel 28 of a swivel pin 29. This swivel pin extends througha pivot block 30 having trunnions 31 which extend vertically. upward and downward and are engaged in openings m These barsare bent so as to be spaced a art at their forward ends to embrace the b ock 30. They rear ends of the bars are upwardly turned, as at 34, and riveted, bolted or otherwise attached to a cross beam formed of the angle irons 35 held together by the three plates 36 which are riveted through the horizontal flanges of the angle irons. Extending over these angle irons at the ends thereof are the worm gear brackets. designated generally 37, each having a base 38 having depending flanges which embrace the upwardly extending flanges of the angle irons, each bracket extending upward and having reinforcing ribs and being formed with a bearing at its upper end.

Mounted. in the bearing is a shaft39 4 which extends inward from the bearing and at its inner end is carried in a bearing 40 which base base portion fitting into the r each shaft 39 is an arm '41 carrying at its end a clevis'42 for-a purpose to be later stated, and mounted upon each shaft 39 is a worm gear wheel 43. Carried in'bearings in each bracket 37 is a worm shaft 44 carrying upon it a worm 45 engaging the worm gear 43. Each shaft at its rear end has a. universal joint connection, as at; 46, with an operating shaft 47 which extends rearward and at its rear end is operatively supported in a bearing 48 mounted on apivot plate 49 attached to the vertical flange of the corresponding thrust bar-10. The rear end of this shaft section 47 has a universal joint connection 50 with an upwardly and rearwardly extending operatingshaft section 51 carrying at its upper end a hand wheel 52 whereby it may be operated.

Mounted upon the convergent. forward the junction of the cross bar with the irons 53, and chains 56 extenddownward from these clevises and engage the clevises 42. Thus it will be seen that as the shafts 39 are oscillated by the worm and worm whiels, the U-shaped frame of the planer will be either lifted or allowed to move downward. The supporting beams formed of the bars 16 and 17 are supported from the transverse beam formed of the angle irons 35 by means of U-shaped bolts or stirrups 57. This allows the beams formed of the members 16 and 17 to shift through'the U-bolts 57 when these beams are longitudinally adjusted.

As before described. the scraper blade is mounted upon the brackets 32 and 33 for oscillation in a horizontal plane and also for tiltingmovement transversely. to the machine. The supporting bars formed of the members 16 and 17 are connected to the scraper blade adjacent the'ends thereof to provide not only for the tilting, movement of the scraper from front to. rear but also for the lateral tilting movement. of the scrapingblade. To that end there is attached to the under side of the angle iron 25 at each end thereof the two angular" brackets 58 between which is one end of a knuckle, designated generally 59, this end being formed with a barrel 60 through which. passes "a pintle 61. The opposite end of -this knuckle-has a vertically disposed barrel 62 through which passes a pin 63. Thus it will be seen that the supporting arms or bars formed of the members 16 and 17 are connected by a universal joint the scraper b18119, which joint will perobtuse an 1e to the line of draft.

mit the scraper blade to be tilte'd iii a. lane I ar ears 651, ,to which is pivoted the clip 65,

this clip being in turn pivoted to the longitudinally extending rod 66 which extends 'rearward and at its rearend is turned downward, as at 67, and the lower end of this downwardly turned portion is perforated for the passage of a pin 68 which may be Thus maybe tilted to extend downward and for ward and by pushing forward upon the bar the blade ma be tilted to extend backward and rearwar or if the proper adjustment has been made the blade is held in a verti- I cal position- Where the blade is extended downward and forward, it acts as a planer, and when disposed in a vertical position and extending downward and rearward, it acts as a scraper. p a

The operation of this mechanism will be obvious from what has gone before. The tractor is propelled under its own power, of course. The maintainer is disposed in front of the front wheel of the'tracto'r and so 1s ushed by the tractor and planes, scrapes and levels the ground. The depth of the planer ma and whee s 52 an equal amount which will lift both sides of the maintainer or-permit both sides to descend equally. If it be desired, one of the supporting bars 16 of the blade may be lowered or raised above the other supporting bar of the blade so that the scraper W111 be laterally tilted. One of the supporting bars 16 may be pushed forward in order to shift one end of the blade belZond the other end of the blade and thus the lade may be disposed in a position at an The blade maybe ti ted forward, set in a vertical position, or tilted rearward, as occasion may require, byadjusting the blade through the action of the rods 66. It will be seen that the thrust on the middle of the blade is carried by the cross beam which is mounted upon the forward ends of the 'thrust bars and that the thrust upon the ends of the maintainer blade is carried by the pthru'st bars themselves through the action of the pins 20. The maintainer, it is obvious, may be readily attached to or detached from the frame of the tractor .bysimply removing the bolts 12 and by discon' necting the clevises from the brackets 53 or disconnecting the 'clevises 42 from the arms 41'.

awhile .I have illustrated a construction which'embodie's features found to be very effective in-actual practice, I do not wish to be thereto as changes'might be made be regulated by turning both in the details of construction and arran e-- ment ofparts without de rating from t e, spirit of theinvention as efinedin the ap-" pended claims:

. I claim 1. In mechanism of the character described, the combination with a road roller,

lowered independently of the other end, an

operators stationon the roller, means mauipulatable from the operators station for elevating or depressing each end of the maintainer independently of the other ineluding shafts mounted upon the maintainer at each end thereof and each shaft having a member mounted on the shaft and movable concentric thereto, a flexible connection between said member and the frame of the roller, and means rearward of'the operator's station whereby each shaft may be nliaripulatedindependently of the other s 1a t.

2. In mechanism of the-character described, the combination with'a road roller, of a. maintainer including a blade disposed in front ofthe road roller, pivotal vertically swinging meansby which the roller pushes the maintainer, said means permitting either 'end of the maintainer blade to be raised or lowered independently of the other end, an operators station on the roller, 1

the frame of the roller, a wormgear wheel on "each shaft, a worm engaging theworm gear wheel, and means extending rearward to the o erators station whereby each worm may be independentlymanipulated.

scribed, the combination with a three wheeled road roller, a U-shapedmaintainer mechanism enclosin the front wheel of the roller, means ivota ly mountedon therollor by which t e roller positively pushes the maintainer, an operator s station on the roller, independent shafts mounted u on the maintainer and having arms, flexi le connections between said arms andthe 'supporting frame' of the roller, ear wheels mounted uponsaidshafts, an means extending from the maintainerto the operators station wherebysaid gear wheels may be operated, said means including a serles of sectional shafts connected to each other by universal joints.

3. In mechanism of the character deerat-lvely sup and havmg 4. In a mechanism of the character described, a road roller carryin an operators station, a maintainer dispose in advance of the roller, a frame supporting the maintainer and pivotally connected to the road roller and constituting means whereby the maintainer may be pushed in front of the road roller,.members operatively connected at their upper ends to the road roller, means mounted u on the maintainer frame and engaging s ai members and shiftable to raise or lower the maintainer frame, and means disposed at the operators station'manipulatable therefrom for operat ng said first named means.

5. A- maintainer attachment for road rollers comprising a maintainer, thrust bars operatively connected to the extremities of the maintainer and at their rear ends adapted to be ivoted to the frame of the road roller, independent rotatable members oported upon the thrust bars exible connections extending therefrom and adapted to extend upward and be operatively connected to the forward end of the road roller, and means for rotating said rotatable members and including shaft sections flexibly connected to each other and extending rearward from said rotatable members and operatively supported upon the thrust bars.

6. In mechanism of the character described, a road roller and -a maintainer in combination therewith, the maintainer including thrust bars pivotally connected at their rear ends to the frame of the/road roller extending forwardly and medially,

. supporting bars mounted upon the thrust bars for forward and rearward adjustment and 'for swinging movement in a horizontal plane, means operatively connecting the blade to said supporting bars and permitting the blade to swing with relation thereto, an operators station upon the roller, and means manipulatable from the operators station whereby the thrust bars may be independently raised or lowered.

7. In mechanism of the character described, a; road roller and a maintainer in combination therewith, the maintainer including a maintainer blade disposed transholding it il this adjusted position, andeluding a maintainer blade disposed =transversely and in advance of the road roller, thrust bars pivoted upon the road roller for movement in a vertical lane and extending forward, means for in or lowering either of blade supporting bars detachably and adjustably connected to the thrust bars for swinging movement in a horizontal plane ependently raising said thrust bars,

and for adjustment forward or rearward upon the thrust bars, means operatively connecting the blade to the thrust bars permitting the upper edge of the blade to be the lower edge, means for adjusting the ,blade and holding it in this adjusted position, means for operatively supporting the vsupporting bars for vertical movement with the thrust bars including a transverse beam means operatively connecting the transverse beam to the thrust bars, and means operatively connecting the transverse beam to the supporting bars. j

9. In mechanism of the character described, a .road roller and amaintainer in combination therewith, the maintainer ineluding-a maintainerblade disposed trans- 0 versely and in advance of the road roller, thrust bars pivoted upon the road roller. for movement in a verticalplane'and extending forward, means for independently raising or lowering eitherof said thrust bars, blade supporting bars detachably and ad ustably connected to .the thrust bars for swinging movement in a horizontal plane and for ad- .i justment forward or rearward upon the thrust bars, means operatively connect ng the blade to the supporting bars permittlng the upper edge of the blade to be adjusted forward or rearward relative to the lower .ed e, means for adjusting the blade and ho ding it in this adjusted posit on, means for operatively supportingthe supportmg bars-for vertical movement with the thrust forward, means for in versely and in advance of the roadroller, bars including a transverse beam, means thrust bars pivoted upon the road roller for operatively connecting the transverse beam movement in a vertical lane and extending to the thrust bars, and operatively connectdependently raising ingthe middle of the scraper blade to the or lowering either of said thrust bars, blade beam forpivotal movement wlth the scraper supporting bars detachably and adjustably blade in a horizontal plane, and means opconnected to the thrust bars for swinging eratively connecting the suppprtlng bars to movement'in a horizontal plane and for ad the transverse beam and permitt ng long1tu-, justment forward or rearward upon the dinal adjustment of the supporting bars. thrust bars, means operatively connecting 10. In a mechanism of the character detheblade to the supportin bars permittin' scribed, the combination with a road roller the upper edge of the bla e to be adjuste having an operators station, of a r oad mainforward or rearward relative to the lower tainer coacting therewith comprising thrust cans for adjusting the blade and bars pivotally connected to the frame of the 85 adjusted forward or rearward relative to roller intermediate its ends for movement in a vertical plane, said thrust bars extending in advance of the forward end of the roller,

blade supporting bars operativel connected to the thrust bars for indcpen ent adjustends of the supporting bars for swinging operatively sustaining said cross beam from movement in a horizontal plane, a cross beam disposed above the supporting bars and the forward ends of the thrust bars, means operatively sustaining said cross beam from the frame of the roller at its forward end, said meanspermitting the vertical adjustment of the cross beam, means operatively connecting the cross beam to the forward ends of the thrust bars and operatively connecting the middle of the scraper blade to the cross beam for pivotal movement in a vertical plane and for pivotal movement in a horizontal plane, and means supporting the supporting bars from the ends of the cross beam and permitting longitudinal adjustment of the supporting bars.

11. In a mechanism of the character described, the combination with a road roller having an operators station, of a road maintainer coacting therewith comprising thrust bars pivotally connected to the frame of the roller intermediate its ends for movement in a'vertical plane, said thrust bars extending in advance of the forward end of the roller, blade su porting bars operativel connected to the tiirust bars for indepen ent adjustment forward and rearward thereon and for ends of the supporting bars for swinging movement in' a horizontal plane, a cross beam disposed above the supporting bars and the forward ends of the thrust bars, means the frame of the roller at its forward end, said means permitting the independent vertical adjustment of each of'the cross beams relativeto the other'end thereof, means operatively connecting the cross beam to the forward ends of the thrust bars and operatively connecting the middle of the scraper blade to the cross beam for pivotal movement in a vertical plane and for pivotal movement in a horizontal plane, and means supporting the supporting bars from the ends of the cross beam and permitting longitudinal adjustment of the supporting bars.

12. In a mechanism of the character described, a su porting frame and a road scraping bla e, longitudinally extending the middle of the scraper b blade, and angular swinging movement of i the scraping blade in a horizontal plane, and means for raising or lowering either end of the sera ing blade independently of the other en J 13. A maintainer for attachment to road rollers comprising thrust bars adapted at their rear ends to'be pivotally and detach-- ably connected with the frame of the road roller and extend forward of the forward endthereof, blade supporting bars mounted upon, the thrust bars for longitudinal adjustment t-herealong, a scraping blade swingingly connected at its ends to the forward ends of the supporting bars, a transversely extending memberwith which the supporting bars have sliding engagement, means mounted upon said supporting frame and extending rearward therefrom and adapted to have portions thereof disposed adjacent the o erators station of the road roller .wh'ereb said cross beam may be operatively suspended from the roller frame'and raised or lowered, and means 0 eratively connecting the cross beam with t e forward ends of the thrust bars and swingingly connecting ade with said beam. 1 a.

v 14. The combination with a tractor, of thrust bars pivotally mounted upon the tractor and extending in front thereof, blade supporting bars adjustably mounted upon the thrust bars for independent forward and rearward movement, a blade operatively sup orted for pivotal movement ina vertica plane upon the, ends of the su' porting bars, means for adjusting the ang of the blade comprising rods' pivotally connected adjacent the upper edge of the b ado and extending rearward therefrom, a member carried upon each of the supporting bars. and having a lon itudinal series of perforations, and means or operatively connecting the rear ends of said rods to t e members, said means being adapted to paw through any one of. said perforations whereby to adjust the angle of the blade.

In testimony whereof I aflix my signature.

7 FRANKLIN E, ARNDT. 

